I recently see a term "semi-parametric" in the answers of my question but not really understand what is this term means.
In statistics, a semiparametric model is a statistical model that has parametric and nonparametric components.
And gives Cox proportional hazards model as an example.
I see Cox proportional hazards model and logistic regression are very similar, why we say one is semi-parametric but not say another?
BTW I found this answer, says GLM is not a semi-parametric model.